发明授权
- 专利标题: Display comprising OLEDs having transparent top electrodes and method of forming same
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申请号: US17347118申请日: 2021-06-14
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公开(公告)号: US11758751B2公开(公告)日: 2023-09-12
- 发明人: Fangchao Zhao , Ilyas I. Khayrullin , Chen Dong , Amalkumar P. Ghosh
- 申请人: eMagin Corporation
- 申请人地址: US NY Hopewell Junction
- 专利权人: EMAGIN CORPORATION
- 当前专利权人: EMAGIN CORPORATION
- 当前专利权人地址: US NY Hopewell Junction
- 代理机构: KAPLAN BREYER SCHWARZ, LLP
- 主分类号: H01L21/00
- IPC分类号: H01L21/00 ; H10K50/805 ; H10K59/121
摘要:
Aspects of the present disclosure describe systems, methods, and structures that provide organic light-emitting diodes having high luminous efficiency and low electrical dissipation. Embodiments in accordance with the present disclosure include a top electrode normally comprising a single film that includes a pair of metals and one metal compound, where the metals include a precious metal in combination with an alkaline earth metal or rare-earth metal and the metal compound is an alkali metal compound. As a result, such a top electrode has a work function that is better matched for efficient electron injection than magnesium-silver alloy-based transparent electrodes known in the prior art.
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